| 摘要 |
PURPOSE: To make a friction surface utilizable up to the rate of a large effective surface, insofar as possible by having both of the friction surface consisting of a nonporous, specific frictional material and the frictional opposed surface comprised of a hard, microporous sintered material oppositely contacted with each other. CONSTITUTION: A lubricated friction clutch for an automotive transmission equipped with clutch parts forms a friction pairing. Materials of one side friction surface of the friction pairing is a specific frictional material equipped with friction characteristics, and materials of the other side frictional surface are those used for ordinary machine constituent parts. The frictional surface consisting of this specific frictional material has no pores or less in the pores and further there is no drainage thread, while a frictional opposed surface is comprised of a hard microporous sintered material, and a surface rate A effective for friction is 50%<A<90% of the total friction surface in a theoretical way, having a mean diameter of less than 300μm in pores.
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